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Distributed Active Optical Fiber Sensor, for Bending Measurement

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Knowledge-Based and Intelligent Information and Engineering Systems (KES 2011)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 6883))

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Abstract

A unique and very important feature of fiber-optic technology consists in its capability for long-range distributed sensing. The paper introduces a simple system based on a bendable large mode area (LMA) fiber, meant for a sensing accuracy of the microns order. The simulation shows that for a 1 m-3 m length of active fiber the 1 μm difference in fiber bending radius is quite well discerned. A power variation of the fundamental mode in excess of 10 μW (-20 dBm) up to 48μW has been obtained. The signal was in L and C band (typical for wavelength division and multiplexing- WDM systems) and the pump wavelength 980nm (lower noise) or 1480 nm (optimizes the output power but higher noise), also typical for telecommunication links. The performance is optimized by varying the bending radius, index/ doping profile, and the LMA fiber core diameter.

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References

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Author information

Authors and Affiliations

  1. Electronics, Telecommunications and Information Technology, Technical University of Cluj-Napoca, Str. Baritiu nr 26-28, Romania

    Ramona Gălătuş & E. Voiculescu

Authors
  1. Ramona Gălătuş
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  2. E. Voiculescu
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Editors and Affiliations

  1. Institute of Integrated Sensor Systems, University of Kaiserslautern, Erwin-Schroedinger-str. 12, 67663, Kaiserslautern, Germany

    Andreas König

  2. Knowledge-Based Systems Group, Department of Computer Science, University of Kaiserslautern, P.O. Box 3049, 67653, Kaiserslautern, Germany

    Andreas Dengel

  3. School of Business, University of Applied Sciences Northwestern Switzerland, Riggenbachstr. 16, 4600, Olten, Switzerland

    Knut Hinkelmann

  4. Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, 599-8531, Osaka, Japan

    Koichi Kise

  5. KES International, P.O. Box 2115, BN43 9AF, Shoreham-by-sea, UK

    Robert J. Howlett

  6. University of South Australia, Adelaide, 5095, Mawson Lakes, SA, Australia

    Lakhmi C. Jain

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© 2011 Springer-Verlag Berlin Heidelberg

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Gălătuş, R., Voiculescu, E. (2011). Distributed Active Optical Fiber Sensor, for Bending Measurement. In: König, A., Dengel, A., Hinkelmann, K., Kise, K., Howlett, R.J., Jain, L.C. (eds) Knowledge-Based and Intelligent Information and Engineering Systems. KES 2011. Lecture Notes in Computer Science(), vol 6883. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23854-3_52

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  • DOI: https://doi.org/10.1007/978-3-642-23854-3_52

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-23853-6

  • Online ISBN: 978-3-642-23854-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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